I'm pretty sure if DOFP turned out to be a big success next year, FOX will suddenly forget this X-Force project and move on with another X-Men movie.

It will do the opposite. Expect more spin-offs and FC prequels along with main films if DOFP is a success. If DOFP fails then the series will reboot and you will have no spinn off films/FC and only a main series...for a bit.

“[In] its current iteration the movie’s actually very small, There’s minimal impact to the studio, which is the way we’re kind of presenting it to them. We’re saying ‘Look, the budget is minimal. Therefore, can we do this the way it should be done?’ Which unfortunately needs a Rated R [age certificate] or it needs those elements.”

“The script is probably available online, it leaked,” he added. "But it’s very meta, I mean the character knows he’s in a movie, he knows he’s in a comic book. He names studio executives in the script. So, it’s kind of a risky property. But, you know, we’ll see. It's actually, within the last couple of weeks, taken a few very, very small tiptoes forward."

“I think if I were a betting man it’ll get made, eventually. I mean it’s just been developed to high heaven. It has great people around it, so we’ll see.”